Not to necro this thing too bad, but I'm loving this setup.
Question is, I've been looking for ways to install a pump kit onto my SR. From what I have found, no one produces a pump kit or the special front block required to turn it into a pump (last thread I saw about this was from this summer.) Has anyone developed one yet that is up for purchase? I'm pretty interested and to be honest, it would turn a 250$ alright marker into one hell of a marker

This inspired me to do one. If you can't do the milling get somebody to mini a SR body and thread it for your favorive mini pump kit. Use the same bolt sled bolt pin. Stock reg is aight barrel is huge add watever slider frame u want and PRESTO!!!!